The root cause of this problem is probably that the "invoke-rc.d cups stop" command fails on Xenial if there are jobs in queue. The dpkg preremoval script runs that command and thus the upgrade procedure fails. In the newer Ubuntu versions the command executes flawlessly.
Until that problem is fixed in some way or another in Xenial, it isn't probably possible at all to safely publish any updates to cups-daemon, not even critical zero-day security patches. -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to cups in Ubuntu. https://bugs.launchpad.net/bugs/1642966 Title: package cups-daemon 2.1.3-4 failed to install/upgrade: subprocess new pre-removal script returned error exit status 1 Status in cups package in Ubuntu: Fix Released Status in cups source package in Xenial: Triaged Status in cups source package in Yakkety: Fix Released Status in cups source package in Zesty: Fix Released Bug description: This is in xenial-proposed, please block release to -updates accordingly :) [Impact] * fail to upgrade [testcase] Root cause is believed to be reproducible with: #!/bin/bash systemctl stop cups.path cups.service rm /var/cache/cups/org.cups.cupsd systemctl start cups.path touch /var/cache/cups/org.cups.cupsd sleep 1 rm /var/cache/cups/org.cups.cupsd sleep 1 systemctl stop cups.service echo $? ProblemType: Package DistroRelease: Ubuntu 16.04 Package: cups-daemon 2.1.3-4 ProcVersionSignature: Ubuntu 4.4.0-46.67-generic 4.4.24 Uname: Linux 4.4.0-46-generic x86_64 NonfreeKernelModules: zfs zunicode zcommon znvpair zavl ApportVersion: 2.20.1-0ubuntu2.1 Architecture: amd64 CupsErrorLog: Date: Fri Nov 18 11:13:15 2016 ErrorMessage: subprocess new pre-removal script returned error exit status 1 InstallationDate: Installed on 2016-05-02 (200 days ago) InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Release amd64 (20160420.1) Lpstat: device for mallards-officejet-pro-8600: dnssd://Officejet%20Pro%208600%20%5BD63461%5D._ipp._tcp.local/?uuid=1c852a4d-b800-1f08-abcd-d89d67d63461 MachineType: Dell Inc. XPS 15 9550 Papersize: a4 PpdFiles: mallards-officejet-pro-8600: HP Officejet Pro 8600, hpcups 3.16.3 ProcCmdline: BOOT_IMAGE=/boot/vmlinuz-4.4.0-46-generic.efi.signed root=UUID=3643ef37-7cee-41b3-9387-2faa819c44db ro quiet splash vt.handoff=7 ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-46-generic.efi.signed root=UUID=3643ef37-7cee-41b3-9387-2faa819c44db ro quiet splash vt.handoff=7 RelatedPackageVersions: dpkg 1.18.4ubuntu1.1 apt 1.2.15 SourcePackage: cups Title: package cups-daemon 2.1.3-4 failed to install/upgrade: subprocess new pre-removal script returned error exit status 1 UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 04/07/2016 dmi.bios.vendor: Dell Inc. dmi.bios.version: 01.02.00 dmi.board.name: 0N7TVV dmi.board.vendor: Dell Inc. dmi.board.version: A00 dmi.chassis.type: 9 dmi.chassis.vendor: Dell Inc. dmi.modalias: dmi:bvnDellInc.:bvr01.02.00:bd04/07/2016:svnDellInc.:pnXPS159550:pvr:rvnDellInc.:rn0N7TVV:rvrA00:cvnDellInc.:ct9:cvr: dmi.product.name: XPS 15 9550 dmi.sys.vendor: Dell Inc. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/cups/+bug/1642966/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
